Hi there,
I've got a small problem, caused by myself :$. Before my last maintenance at the dealer I noticed the brake fluid needed to be changed aswel, so I decided to change it to different brake fluid (Motul RBF660), because of good experience with it. The dealership front office didn't expected any problems so it was planned. After the service they told me they didn't change the fluid, because they can not work with different brake fluids, because they only do it with their equipment, which doesn't allow them to change to something different.
No problem I thought, then we will do it our selfs (this is where it went wrong ).
First attempt
- we had a BMW computer, to work with the computer, to get the DSC pump flushed
- further we did a normal brake fluid change, both of us did it more often
- after bleeding quite long (3 litres), it was for the first we thought this could be it
- smal testdrive quite quick showed the problem, pedal first attempt is soft, second attempt pressure is allright
Second (and third until ninth attempt )
- we had a BMW computer
- we also had an system which kept the brake system on pressure (often used in garages); small research showed that this could be necessary
- short bleeding, 100% no air showed
- pedal is better, but still not there, needs a small first press and after that its perfect, but this isn't the way it should
Problem atm is that we don't know what to do, my last option is going back to the dealer en changing back to oem fluid, but feels a bit wasted of energy, if we could make it the normal way around.
We feel that the system is bleed properly, and the ABS/DSC pump we can't operate other than with the computer, and we tried this several times en monitor shows that this has gone right.
Anyone with any thoughts or tips?
I've got a small problem, caused by myself :$. Before my last maintenance at the dealer I noticed the brake fluid needed to be changed aswel, so I decided to change it to different brake fluid (Motul RBF660), because of good experience with it. The dealership front office didn't expected any problems so it was planned. After the service they told me they didn't change the fluid, because they can not work with different brake fluids, because they only do it with their equipment, which doesn't allow them to change to something different.
No problem I thought, then we will do it our selfs (this is where it went wrong ).
First attempt
- we had a BMW computer, to work with the computer, to get the DSC pump flushed
- further we did a normal brake fluid change, both of us did it more often
- after bleeding quite long (3 litres), it was for the first we thought this could be it
- smal testdrive quite quick showed the problem, pedal first attempt is soft, second attempt pressure is allright
Second (and third until ninth attempt )
- we had a BMW computer
- we also had an system which kept the brake system on pressure (often used in garages); small research showed that this could be necessary
- short bleeding, 100% no air showed
- pedal is better, but still not there, needs a small first press and after that its perfect, but this isn't the way it should
Problem atm is that we don't know what to do, my last option is going back to the dealer en changing back to oem fluid, but feels a bit wasted of energy, if we could make it the normal way around.
We feel that the system is bleed properly, and the ABS/DSC pump we can't operate other than with the computer, and we tried this several times en monitor shows that this has gone right.
Anyone with any thoughts or tips?